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Vulnerability · Published May 7, 2026 · Assigned by VulDB

CVE-2026-8086OSGeo gdal SWapi.c SWnentries heap-based overflow

Medium 5.3

In plain English

A medium-severity heap buffer overflow in gdal from OSGeo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.2%top 85.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability was identified in OSGeo gdal up to 3.13.0dev-4. This issue affects the function SWnentries of the file frmts/hdf4/hdf-eos/SWapi.c. Such manipulation of the argument DimensionName leads to heap-based buffer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. Upgrading to version 3.12.4RC1 is capable of addressing this issue. The name of the patch is 9491e794f1757f08063ea2f7a274ad2994afa636. It is advisable to upgrade the affected component.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12gdalno fix listedDEBIAN-CVE-2026-8086
Debian:13gdalno fix listedDEBIAN-CVE-2026-8086
Debian:14gdal3.13.0+dfsg-1DEBIAN-CVE-2026-8086
PyPIgdal3.13.0PYSEC-2026-2154
Ubuntu:25.10gdalno fix listedUBUNTU-CVE-2026-8086

Affected products (as reported)

VendorProductVersions
OSGeo gdal 3.13.0dev-4

Weakness: CWE-122, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

References